Foldable ignitor
US7614874B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Aug 31, 2006 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | Sep 1, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23Q2/164
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A foldable lighter that prevents inadvertent ignition by erroneously pressing on the operating button at time of folding the swing-arm to make the lighter compact. A foldable lighter 1 that comprises a lighter lighter body 2 that contains a fuel tank, a piezoelectric unit 102 and an operating button 8, and swing-arm 4 connected with free swinging to one end of lighter body 2 and that incorporates a locking mechanism that prevents accidental depression of the operating button 8. The locking mechanism consists of a projecting portions 74 formed in a predetermined range of the cylindrical walls 26a, 26c made integrally with a swing-arm 4 and a hook 8b that extends from the operating button along a portion of the cylindrical walls. The aforementioned predetermined range prescribed for the projecting portions is the range in which the hook 8b interferes with the projecting portions when the swing-arm 4 is turned relative to the lighter body 2 by an angle which is below a predetermined value so that if the operating button 8 is depressed when the swing-arm 4 is turned relative to the lighter body 2 by an angle which is below a predetermined value, the hook 8b will interfere with the proj…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.